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Finding the Fourth Proportional to 329,093.73, 493,542.79 and 139,551.30

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Solution

The fourth proportional to 329,093.73, 493,542.79 and 139,551.30 is: 209,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,093.73 : 493,542.79 = 139,551.30 : x
  2. Step 2: Convert to fraction form
    329,093.73/493,542.79 = 139,551.30/x
  3. Step 3: Cross multiply
    329,093.73x = 493,542.79 × 139,551.30
  4. Step 4: Simplify right side
    329,093.73x = 68,874,537,601.25
  5. Step 5: Solve for x
    x = 68,874,537,601.25/329,093.73
  6. Step 6: Final answer
    x = 209,285.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.